Lighting fixture



Nov. l, H9?, LMQM J. WaLLmMsQN LIGHTING FIXTURE Filed' March 17,. 192

Patented Nov. l, 1927.

JAMES WILLIAMSON, 0F CHICAGO, ILLINOIS.

LIGHTING FIXTURE.

Application led March 17, 1926. Serial No. 95,173.

This invention relates to a novel and improved lighting fixture and has for its principal object to provide means for supporting a lamp socket so that ity may be easily inserted in the cover or removed therefrom without the use of tools.

A further object of the invention is to provide a lightsocket which is detachably supported wholly by the cover and detachably engaged therewith so that it can be easily removed and replaced.

In the drawings I have shown a selected embodiment of the invention and referring theretoy Fig. 1 is an elevation, partly broken away, and in section, of a fixture embodying the invention;

Fig. 2 is a similar view' showing the socket' member being applied to or removed from the cover;

Fig. 3 is a sectional elevation;

Fig. t is a transverse sectional view on the line 1 -4 of Fig. 1; and

Fig. 5 is a detail view, partly in section, of the socket member detached from the cover. j

Referring to the drawings, 6 is a domeshaped socket member supported from the arm 7 and providedwith an opening 8 to receive the key 9 of the socket member. This socket member comprises a cylindrical body 10 having the threaded shell 11 to receive the base of a lamp and it also has a contact member 12 and usual means l13 for securing the conductor wires thereto. In* 'termediate of the ends of the body of the socket members are annular flanges 14, 15, spaced apart to accommodate a flat spring 16. The iianges have beveled edges to fit snugly within the cover whereby the socket member is positioned in the cover. The spring is fastened between its ends to the body of the socket member by a screw 17 which clamps the spring tightly against the body and forms the spring, in effect, into two arms projecting on opposite sides of the fastening and secured around the body within the groove 18 betweenvthe annular flanges 14, 15. Projections 19 are provided `on the spring arms adjacent the free ends of the spring and these projections extend through openings 20 in the cover.

To assemble the parts the socket member is inserted in the cover and the key through the sloty as indicated in Fig. 2 and then the 55 socket member is pushed up in the cover to the position shown in Figs. 1 and 3, whereupon the projections 19 enter the opening 20 and secure the socketmember in the cover. The key and the slot register the 6o Socket member in proper position in the cover and the flanges 14t,15,also register the socket member in final position in the cover so that the projections will register with ythe openings and enter them to hold the socket member rigidly in place in the cover. To remove the y socket member from the cover it is only necessary to compress the spring onthe body of the socket member, by applying pressure to the projections 19, until the projections have been forced sufficiently within the cover to permit the socket member to be pulled out of the cover.

. My invention provides 'a fixture of simple construction, having few? parts, which can be readily assembled or separated, and which is strong and substantial. The parts are made of usual materials and in shapes and sizes adapted to different .conditions as required.

Changes in the form, construction and arrangement of parts may be made without departing from the invention and I reserve the right to make all such changes as fairly fall within the scope of the following claims.

I claim:

1. A lighting fixture comprising a cover having side openings therein, a socket member comprising a body and having means to 90 receive. and support a lamp, annular flanges on the body of said socket member spaced apart t0 form an annular groove therebetween, a at spring fastened between its ends to said body within the groove and having `mi its free ends extending outwardly and transverse to the vertical aXial line of said body, and projections mounted on each end of ends to said body within the groove, said 10 spring being curved and extending out- Wardly away from said body and transverse to the axial line thereof to form resilient arms, and projections mounted on the outer ends of said spring to engage the openings 15 in said cover.

JAMES WILLIAMSON. 

